Polarization:	Polar
Package / Case:	Radial, Can - Screw Terminals
Mounting Type:	Chassis Mount
Surface Mount Land Size:	--
Height - Seated (Max):	2.717" (69.00mm)
Size / Dimension:	3.543" Dia (90.00mm)
Lead Spacing:	1.252" (31.80mm)
Impedance:	13 mOhms
Ripple Current @ High Frequency:	23.7A @ 10kHz
Ripple Current @ Low Frequency:	22.7A @ 100Hz
Applications:	General Purpose
Ratings:	--
Series:	ALS71
Operating Temperature:	-40°C ~ 85°C
Lifetime @ Temp.:	5000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	13 mOhm @ 100Hz
Voltage - Rated:	40V
Tolerance:	±20%
Capacitance:	160000µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Aluminum Electrolytic Capacitors (AECs) are a type of electrical component used to store energy and provide a medium for electrical current flow. They are widely used in a variety of applications, including motor control, signal processing, noise reduction, and energy storage. In this article, we will discuss the application field and working principle of the ALS71C164QC040 AEC.

Application Field

The ALS71C164QC040 is a long life, miniature, non-solar cell aluminum electrolytic capacitor used for power and industrial application fields. It is designed for use in a variety of devices, including high-power switching circuits, motor controllers, uninterruptible power supplies, and DC/DC converters. It is a highly reliable device, providing a wide operating temperature range from -55℃ to +105℃ and a wide capacitance range from 8 µF to 10,000 µF.The ALS71C164QC040 is a polarized capacitor, meaning it is subject to an electric field when the voltage applied across its terminals is reversed. This means that the device must be connected properly in order to prevent damage and ensure proper operation. Additionally, the device is designed to provide a constant capacitance over its entire life, with minimal leakage and noise.

Working Principle

Aluminum electrolytic capacitors comprise two electrodes, an electrolyte, and a separator, all of which are housed in a metallic package. The electrodes are typically made of aluminum and the electrolyte is most often a solution of sulfuric acid in water.The aluminum electrode is etched on one side to create a porous surface area for the electrolyte to flow through. This etching process also allows the electrolyte to establish a film on the electrode’s surface, creating a double layer of electrons and ions. This double-layer, called a capacitance, is what stores electrical energy in the capacitor.When voltage is applied across the two terminals of the capacitor, an electrical current flows across the electrolyte from one terminal to the other. This current flow is what provides the energy storage capability of the device.

Conclusion

The ALS71C164QC040 is a long life, miniature aluminum electrolytic capacitor designed to improve power and industrial performance. It has a wide operating temperature range from -55℃ to +105℃ and a wide capacitance range from 8 µF to 10,000 µF. The device is subject to an electric field when the voltage applied across its terminals is reversed, and it is designed to provide a constant capacitance over its entire life. The device is composed of an aluminum electrode, an electrolyte, and a separator, and works by allowing an electrical current to flow across the electrolyte from one terminal to the other, thus providing energy storage.

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